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Applies the effect to the specified GcBitmap.
protected abstract void Apply(GcBitmap bitmap)
Protected MustOverride Sub Apply(bitmap As GcBitmap)
Applies the effect to a part of the specified GcBitmap.
protected abstract void Apply(GcBitmap bitmap, int x, int y, int width, int height)
Protected MustOverride Sub Apply(bitmap As GcBitmap, x As Integer, y As Integer, width As Integer, height As Integer)